Bow-shuttle spindle



Oct. 14 1924. 1,511,375

W. SIMMONS BOW SHUTTLE SPINDLE Filed Nov. 25 1922 INVENTOR ATTORNEY I K Patented Get, 14, 1924,

UNITED STATES WILLIAM SIMMONS, OF NEW YORK, N. Y.

BOW-SHUTTLE SPINDLE.

Application filed November 25, 1922.

To all whom it may concern:

Be it known that I, WILLIAM SIMMONS, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Improvements in Bow-Shuttle Spindles, of which the following is a specification.

This invention relates to spindles.

More particularly, the invention relates to spindles such as are the main embodiment of bow-shuttles.

Some of the objects of the present invention are: to produce a comparatively efiicient and effectual device of the character mentioned; to provide a novel form of tensioning means; to simplify the spindle construction; and with these and other objects in view the invention resides in the particular provision, relative disposition, and the functions of the parts hereinafter fully described and illustrated in the accompanying drawing, in which:

Figure 1 is a side elevation of a shuttle embodying the spindle of the present invention.

Figure 2 is an enlarged sectional view through the spindle.

Figure 3 is a transverse sectional view taken on the line 33, Figure 2.

Figure 4 is a transverse sectional View taken on the line 44, Figure 2.

Figure 5 is a detail plan view of the thread guide.

Referring now more particularly to the several views of the drawing, it will be ap parent that, the spindle of the present invention is shown as applied to a shuttle frame 10. The invention, generally, comprises a spool 11 having thread 12 thereon, tensioning means 13, and frictional controlling means 14. The tensioning means 13 is connected to and affects the rotation of the Serial No. 603,253.

pin 19 and which member 20 is movable or turnable on said pin but which is prevented from having movement longitudinally of the pin by collars 21. One end of the spring 18 is connected to the member 20, and the said member is capable of being disposed in one of the kerfs 16 to cause the spool to turn or rotate with the member 20 by virtue of the action of the spring 18. It should also be noted that rotation of the spool because of a pull on the lead of the thread will cause the tensioning of the spring 18.

The frictional controlling means 1 1 com prises a ring 22, a pressure member 23 which coacts with said ring 22, and a lever spring 24. The ring 22 surrounds the pin 19 and one end of the spring 18 is connected to said ring. The member 23 has a lateral portion 25 and a lateral portion 26. The portion 25 is disposed in a bore in the frame to allow the member 23 to have pivotal movement, whereas, the portion 26 is capable of being kept in contact with the ring 22 to set up friction action after the fashion of a brake. The lever spring 24 has a lateral portion 27 and a lateral portion 28. The portion 27 is disposed in a bore in the frame, whereas, the portion 28 presses against a portion of the member 23. The member 23 and spring 24 are held against displacement by a member 29 whose opposite ends are sprung into holes in the frame.

From the foregoing, it should be manifest that; by pulling on the lead of the thread 12 the thread may be unwound from the spool which is caused to rotate; the rotating of the spool caused by the pull on the lead of the thread causes the torsional spring 18 to become tensioned because the member 20 to which the spring 18 is connected is in a kerf 16 and because the portion 28 of the pressure member 23 is pressing against the ring 22 to which the opposite end of the torsional spring 18 is connected; when the torsional spring 18 is tensioned to the verge where the frictional action set up by the ring 22 and member 23 can no longer resist the tendency of the ring 22 to turn, the said ring 22 slips relatively to the portion 26, all of which action is repeated as the thread is unwound; and release of the pull on the thread will result in its being rewound on the spool because the torsional spring 18 will be under tension with a tendency to retrograde action. 1

What is claimed is:

1. A frame having a thread guide, a pin carried by said frame, a spool of thread rotatably supported in the frame for the un winding of the thread with the lead thereof passing through said guide, a torsional spring surrounding said pin and having one end thereof connected to a member extending laterally from the pin, the said spool having a kerf for the reception of said mem ber, a friction ring surrounding said pin and connected to said torsional spring, and a pressure member in contact with said friction ring.

2. A bow shuttle comprising a frame, a pin rigidly mounted in said frame, a spool of thread rotatably mounted in said frame, a torsional spring encircling said pin, friction means on one end of said pin and connected with said torsional spring, said friction means co-acting with said pin and a pressure member co-acting with said friction means, a member mounted on said pin and connected to the other end of said tor sional spring, said'member co-acting with a means on said pin for turning movement thereon, said last means preventing longitudinal movement on said member.

3. A bow shuttle comprising a frame, a pin rigidly mounted in said frame, a spool of thread rotatably mounted in said frame, a torsional spring encircling said pin, a member connected to one end of said torsional spring for co-action with collars on said pin and for co-action with said spool of thread, a ring connected to the other end of said spring and having frictional engage-- ment With said pin, and a pressure member co-acting with said ring substantially as and for the purpose specified.

In testimony whereof I hereby affix my signature.

WILLIAM SIMMONS. 

